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Head-to-head test

EcoFlow DELTA Pro vs EcoFlow TITAN 5000 Classic

Neither unit has a 240 V outlet, so this is a straight 120 V size contest, and the Classic wins it on the three numbers that carry a long outage: 1,417.6 Wh more pack, 400 W more inverter and twice the solar input.

Full profiles: EcoFlow DELTA Pro → · EcoFlow TITAN 5000 Classic →

Written by Gunner GustafsonUpdated

Whole-Home Backup Tester, Station Arena Test Desk

Stack these against 100+ rivals
MethodologyReader-supported — we may earn from links (details)

Spec deltas

Capacity
3,600Wh
5,017.6Wh
Output
3,600W
4,000W
Weight
99 lb
102.5 lb
Typical price
$1,899
$2,599
Cost / Wh
$0.53
$0.52
Solar input
1,600W
3,200W
01

Neither of these has a 240 V outlet. EcoFlow's rating label puts the TITAN 5000 Classic at 4,000 W on 120 V onlyB1, and the DELTA Pro's record shows no 240 V socket either, so the split-phase question that settles most TITAN comparisons never comes up. What's left is a plain contest of size on 120 V, and size is the Classic's whole argument.

It wins every line both units publish. The pack is 5,017.6 Wh against 3,600B5, the inverter 4,000 W against 3,600, and the solar input 3,200 W against 1,600B3. It costs $700 more, which at these prices works out to about the same rate per watt-hour, so the extra 1,417.6 Wh is more battery at the going rate rather than a premium for the TITAN badge.

The DELTA Pro, at $1,899, keeps two honest arguments. It's the cheaper way into a 3,600 Wh EcoFlow, and its face is better for a desk: two 100 W USB-C ports to the Classic's single 60 WB8. If your outages are one-night affairs, that's enough. If they've been running into a second day, buy the Classic.

02

What the Numbers Reveal

Each conclusion stated first — the numbers behind it on one line, the full analysis below.

F1

solar input

In a multi-day outage, solar is the only charger left, and the Classic turns a short winter day into twice the stored energy. You don't pay for its extra capacity in refill time. You get refill time back.

DELTA Pro solar input: 1,600 WTITAN 5000 Classic solar input: 3,200 W across 30–250 VB3Pack sizes: 3,600 Wh vs 5,017.6 Wh

Why it mattersAnyone planning to ride out a long outage on panels should treat the solar input as the deciding spec, provided the array is sized to feed 3,200 W.

F2

So the gap isn't about tonight. It's about whether tomorrow evening gets rationed, and with twice the solar input to top up during the day, the Classic is the one that can run the same night again without anyone counting watts.

8-Hour Blackout load: 1,645 WhDELTA Pro: 54% used, 1,415 Wh leftTITAN 5000 Classic: 39% used, 2,620 Wh left

Why it mattersIf your outages end by morning, the DELTA Pro covers them for $700 less; if they've been lasting past a day, that's the Classic's whole case.

F3

On the Classic, the second laptop goes through its AC brick and loses energy to two conversions, and the first gets 60 W instead of 100. That's the Classic's one real weakness on this page, and it's a desk-side one: it never decides how long the fridge stays cold.

DELTA Pro: two USB-C ports at 100 W, four USB-A, five AC outletsTITAN 5000 Classic: one USB-C at 60 W, one USB-A at 18 WB8, four AC outletsRemote Workday: 910 Wh, 30% of the DELTA Pro and 21% of the Classic

Why it mattersTwo people working through an outage off USB-C have a genuine reason to prefer the DELTA Pro, on top of its lower price.

The specific dimensions that decide these two units — everything else is a tie.

Runtime: Will It Power Your Gear?

Selected because: With no 240 V on either unit, capacity is the main published difference, and it sets how long every 120 V circuit stays on.

continuous output

After the flat 85% allowance the engine applies to both, the Classic has about 4,265 usable Wh to the DELTA Pro's 3,060. Every runtime in this table stretches by roughly 39% on the Classic (4,265 ÷ 3,060), whether it's the fridge, the furnace blower or the router you've decided can't go dark.

The inverter gap is the smaller story: 4,000 W against 3,600 is 400 W, room for one more modest appliance running beside the rest. Nobody should buy the Classic for its output. Buy it for the hours.

Growth Path

Selected because: The Classic takes 3,200 W of solar to the DELTA Pro's 1,600 and both accept extra batteries, which is how a long outage gets won.

solar input

Plug the Classic into a wall and it draws at most 15 A on 120 VB7, which is 1,800 W (15 × 120); point a full array at it and it takes 3,200 W across 30–250 VB3. For a battery bought to outlast the grid, that's the right way round: its fastest charger is the one still working in a blackout.

Both take extra batteries. The Classic's label allows six packs of 5,017.6 Wh, 30,105.6 Wh in allB6; the DELTA Pro expands too, though our record gives no ceiling for it. One placement note for the Classic: its label allows charging only between 0 °C and 45 °CB10, so a unit in an unheated garage won't take solar on a morning below 32 °F, however good the sun.

Your Life, Your Pick

Selected because: The 8-Hour Blackout row is the job this pair is bought for; the other rows show how much headroom each leaves on lighter days.

Read the 8-Hour Blackout row first. The Classic ends the night at 39% used and the DELTA Pro at 54%, and both start every load in the table, so this section measures margin, not capability. CPAP and Remote Workday are ties on capacity, with the workday row's real difference sitting in the USB-C ports.

Give the Weekend Camping, Tailgate and Van Life rows little weight on this pair. EcoFlow sells the Classic with its 120 V Smart Home Panel 10B4, and its label places it in a utility space, outside bedrooms and living areasB9: it's a house battery, and those rows test a job it isn't sold for.

Strengths & trade-offs

EcoFlow DELTA Pro

Strengths

  • +Costs $700 less
  • +Lighter by 3.5 lb
  • +Rated for 3,500 charge cycles — much longer battery lifespan

Trade-offs

  • –Very heavy unit that may be difficult for one person to lift.
  • –Can receive complaints about fan noise under heavy load.

EcoFlow TITAN 5000 Classic

Strengths

  • +Larger battery capacity
  • +Higher AC output
  • +Faster solar charging

Trade-offs

  • –Substantially more expensive (+$700) than the DELTA Pro.
  • –Very heavy unit that may be difficult for one person to lift.
  • –Shorter-lived battery — rated for 0 charge cycles vs the DELTA Pro's 3,500, so it wears out sooner.
03

Will It Power Your Gear?

Scenario math and per-appliance runtimes, modeled from the spec record.

Scenario verdicts

We ran the math on six real-world scenarios. Here's which unit survives your actual life.

SCN-01 · 2 nights · needs 2,100Wh

Weekend Camping

Two nights off-grid with essential comfort

DELTA Pro

The TITAN 5000 Classic at 102.5 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the DELTA Pro by default — and it earns it, covering the 2,100Wh with 960Wh to spare. Capacity was never the TITAN 5000 Classic's problem here; getting to a campsite was.

Camping power station guide →

Battery budget usedlower = more headroom

LOAD  Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h

SCN-02 · 8 hours · needs 1,645Wh

8-Hour Blackout

Keep the essentials running through a night without power

TITAN 5000 Classic

Both survive the night. The TITAN 5000 Classic finishes at 39% used with 2,620Wh left — 1.6 more nights like it. The DELTA Pro finishes at 54% with 1,415Wh, 86% of a second night. If your outages tend to run past one evening, that difference is the whole argument between them.

Emergency blackout power guide →

Battery budget usedlower = more headroom

LOAD  Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h

SCN-03 · 8 hours · needs 320Wh

CPAP Overnight

Sleep therapy without interruption — the #1 medical use case

TITAN 5000 Classic

A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here, and the percentages are a formality. What matters is the box next to your pillow, and the only published difference is a rating: the TITAN 5000 Classic is rated 30dB against the DELTA Pro's 60dB. Each is the maker's own published rating, and the makers do not measure the same way, some quoting a best case and some a figure under load, so neither number describes a 40W draw and the two are not really comparable. Treat them as a reason to look for hands-on reports before either one goes next to a bed, not as a difference you can count on hearing.

Battery budget usedlower = more headroom

LOAD  CPAP Machine 40W×8h

SCN-04 · 8 hours · needs 910Wh

Remote Workday

Full work day off-grid without power anxiety

Either unit

Both power your workstation all day without strain. At these utilization levels the real difference is USB-C for direct laptop charging — 100W on the DELTA Pro against 60W — which beats the inverter for convenience and wastes less energy.

Battery budget usedlower = more headroom

LOAD  Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h

SCN-05 · 4 hours · needs 670Wh

Tailgate Party

Game day power for the crew

DELTA Pro

The TITAN 5000 Classic at 102.5 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the DELTA Pro by default — and it earns it, covering the 670Wh with 2,390Wh to spare. Capacity was never the TITAN 5000 Classic's problem here; getting to a tailgate was.

Battery budget usedlower = more headroom

LOAD  Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h

SCN-06 · 24 hours · needs 4,685Wh

Van Life Daily

A full day of mobile living — the ultimate endurance test

Neither unit

Neither unit covers this scenario's 4,685Wh: the DELTA Pro comes up 1,625Wh short (about 65% covered), the TITAN 5000 Classic 420Wh (91%) (its nameplate 5,018Wh actually clears this — the flat 15% conversion allowance is what tips it under). Either gets you most of the way, so this is a scenario you plan around rather than one you should rule them out for.

RV & van-life power guide →

Battery budget usedlower = more headroom

LOAD  Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h

The Load Test

RUNTIME = (Wh × 0.85) ÷ LOAD

None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.

Essentials

Comfort & Convenience

High-Draw Appliances

Test duration

8h

Continuous draw

205W

Projected runtime

DELTA Pro14.9h
54% of usable battery in 8h
TITAN 5000 Classic20.8h
38% of usable battery in 8h

For this load: TITAN 5000 Classic runs 20.8h vs 14.9h.

Check TITAN 5000 Classic price →

$2,599 list · direct from EcoFlow

Planning for more than this? Describe your whole setup and get it sized →

Modeled from the spec record — same math as the tables below. Methodology

Runtime by appliance

Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹

Essentials

The basics you need runningscale 0–284.3h
ApplianceDELTA ProTITAN 5000 Classic
CPAP Machine40W draw
DELTA Pro: 76.5h9 full nights
TITAN 5000 Classic: 106.6h13 full nights
Phone Charger15W draw
DELTA Pro: 204h
TITAN 5000 Classic: 284.3h
Router + Modem20W draw
DELTA Pro: 153h
TITAN 5000 Classic: 213.2h
Starlink75W draw
DELTA Pro: 40.8h
TITAN 5000 Classic: 56.9h
LED Lights (4 bulbs)40W draw
DELTA Pro: 76.5h
TITAN 5000 Classic: 106.6h
Laptop (Working)60W draw
DELTA Pro: 51h
TITAN 5000 Classic: 71.1h

Comfort & Convenience

Makes off-grid life actually enjoyablescale 0–56.9h
ApplianceDELTA ProTITAN 5000 Classic
Box Fan75W draw
DELTA Pro: 40.8h
TITAN 5000 Classic: 56.9h
LED TV (55")80W draw
DELTA Pro: 38.3h
TITAN 5000 Classic: 53.3h
Mini-Fridge150W draw
DELTA Pro: 20.4h
TITAN 5000 Classic: 28.4h
Electric Blanket200W draw
DELTA Pro: 15.3h1 full night
TITAN 5000 Classic: 21.3h2 full nights

High-Draw Appliances

These reveal the real limitsscale 0–4.3h
ApplianceDELTA ProTITAN 5000 Classic
Coffee Maker1000W draw
DELTA Pro: 3.1h
TITAN 5000 Classic: 4.3h
Microwave1200W draw
DELTA Pro: 2.6h
TITAN 5000 Classic: 3.6h
Space Heater1500W draw
DELTA Pro: 2h
TITAN 5000 Classic: 2.8h

¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.

Conclusion

October 4, 2026

Verdict: the TITAN 5000 Classic, on Power Score margin

Take the Classic if the circuits you need through an outage are all 120 V, since neither unit has a 240 V outlet. It holds 5,017.6 Wh to the DELTA Pro's 3,600, runs 4,000 W continuous to 3,600B1 and takes 3,200 W of solar to 1,600B3, so it lasts longer on the same load and refills faster from the same sun. The DELTA Pro is the cheaper of the two by $700, and that's the right trade if a single night of essentials is your whole plan and 3,600 Wh already covers it, or if two 100 W USB-C ports at the desk matter more to you than a second evening of runtime.

EcoFlow has not published this price yet. We priced the TITAN 5000 Classic at $2,599 from EcoFlow's pre-launch store listing, so treat it as an estimate. We will update this comparison when the price is published.

■■■■■■□□□□6/10

Editor-assigned confidence, based on cited owner research and spec analysis.

List prices as of October 4, 2026. The links below open EcoFlow's current price.

Check TITAN 5000 Classic price

$2,599.00 (estimated) · check the store for today’s price

or check the DELTA Pro price$1,899.00 list

Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated October 4, 2026

Black Friday · 45 days out

Price to beat:DELTA Pro $1,599

The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.

EcoFlow Black Friday deals →
04

Measured Data

Benchmark scores and the full spec record, side by side.

Benchmark scores

DELTA ProTITAN 5000 Classic
Overall Power Score
4,810
5,537
Home BackupCapacity & Resilience
4,818
5,415
Solar GeneratorSolar Input & Efficiency
4,202
5,044
Food TruckSustained Heavy Output
4,785
5,072

Not rated for both units (minimum threshold unmet): UPS, RV Living.

Full specifications

DELTA Pro
$1,899
Updated Oct 4
See live price →
TITAN 5000 Classic
$2,599.00 (estimated)★ our pick
Updated Oct 4
See live price →
Capacity (Wh)
3600
5017.6
Output (W)
3600
4000
Surge Peak
7200W
Not Specified
AC Outlets
5
4
240V Outlets
0
0
30A RV Outlets
1
1

ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →

Comparison ToolAdd more power stations, side by sideOpen Tool →
How these numbers are produced

Numeric verification

Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.

Owner claims

Statements about owner experience are cited to published reviews — see Sources & Research Notes below.

Runtime model

Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.

Power Score

Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.

See the full weight table and data sourcing on our methodology page →

Class ranking (the star rating)

Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA Pro rates 3.7/5 (26th percentile of 20 Home Backup-class units), and TITAN 5000 Classic rates 3.8/5 (32nd percentile of 20 Home Backup-class units).

How the class ranking is computed →

Test Notes & Caveats

Hidden gotchas and advantages we spotted that you won't find on the product page.

[CAUTION]

Weight Reality Check

Neither unit is grab-and-go. The DELTA Pro (99 lbs) is manageable solo but heavier than a large checked suitcase. The TITAN 5000 Classic (102.5 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 4 lb difference.

[CAUTION]

DELTA Pro: 60dB Published

60dB is about as loud as a normal conversation. The TITAN 5000 Classic is rated 30dB — lower, but the two ratings need not describe the same operating regime even within one maker's own range, so the two figures are not a like-for-like gap. For most people, fan noise around 45dB and up is where sleep starts to suffer.

[NOTE]

Warranty: No Difference

Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Worth saying because the per-dollar framing can suggest otherwise: the DELTA Pro works out at 2.6 years of cover per $1,000 spent against the TITAN 5000 Classic's 1.9, but that spread is the price gap, not the terms.

Full record above — the Test Desk pick is the TITAN 5000 Classic.

Check TITAN 5000 Classic price →or check the DELTA Pro price
05

Ownership Analysis

What happens after you buy — true cost of ownership, brand trust, and growth potential.

Lifetime value

DELTA ProTITAN 5000 Classic

│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead. est. = no published cycle rating; the brand’s average is used instead.

DELTA Pro
TITAN 5000 Classic
Purchase price
$1,899.00
$2,599.00 (estimated)
Lifetime energy delivered
12,600 kWh
17,060 kWh est.
Cost per lifetime kWh
$0.15
$0.15 est.
Cost per warranty year
$380/yr
$520/yr
Battery lifespan
9.6yr daily · 33.7yr weekends · 67.3yr weekly
9.3yr daily · 32.7yr weekends · 65.4yr weekly est.

Analyst note

The TITAN 5000 Classic has no published cycle rating, so its lifetime rows use the average of the 28 LiFePO4 units EcoFlow does rate: about 3,400 cycles. That's a fair baseline for the brand but not a rating for this unit, so cost to own isn't scored on it. Judge these two on price, capacity and warranty, and read the rows marked "est." as a ballpark.

Growth path

DELTA Pro

EXPANDABLE

Supports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 3,600Wh.

Accepts up to 1,600W of solar. Enough for a serious multi-panel array.

Generous port selection supports complex multi-device setups.

Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.

TITAN 5000 Classic

EXPANDABLE

Supports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,018Wh.

Accepts up to 3,200W of solar. Enough for a serious multi-panel array.

Adequate ports for most setups, but heavy users may want a power strip.

Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.

DELTA ProTITAN 5000 Classic

Analyst note

Both expand, but the TITAN 5000 Classic's higher solar ceiling (3,200W vs 1,600W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.

06

What Owners Report

Patterns from published owner reports and long-term reviews — every claim cited to its source below.

EcoFlow DELTA Pro

Reviewers consistently treat the DELTA Pro as a dependable home-backup unit. One calls it a long-standing benchmark built for high-draw appliances, carrying a fridge, lighting and a space heater through outagesA1; another ran it as primary backup across several overnight outages over monthsA3. Two further reports describe heavy-but-wheeled handling and a high-pitched fan whine above 2000WA2A4, but our research could not confirm they describe this model rather than the heavier DELTA Pro 3A0, so read them as character, not spec.

“Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”
— backuppowerhub.com / us.ecoflow.com — EcoFlow DELTA Pro review, 2025-2026

Sources

backuppowerhub.com · us.ecoflow.co · outdoorgearlab.com · bobvila.com · powerstationadvisor.com · robbsutton.com

EcoFlow TITAN 5000 Classic

The evidence so far is EcoFlow's own published ratings, and they fix the outline of the machine: a 5,017.6 Wh pack at 204.8 VB5, 4,000 W of output on 120 V onlyB1, three 20 A sockets and one 30 A portB2, and 3,200 W of solar across 30–250 VB3. Our own arithmetic on that pack voltage points to LFP cellsB11.

“4,000 W continuous output at 120 V only — no 240 V split-phase.”
— EcoFlow rating label (regulatory filing), model EF-TT-5C-G1, 2026-07-20

Sources & Research Notes

Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.

Recurring owner themes

  • Established home-backup platform with wheeled portability and massive expandability; the consistent knock is fan noise under heavy load. [DELTA Pro · 3 entries]
  • No owner or reviewer reports exist yet: every entry is EcoFlow's own rating label or store page, plus two of our own readings of the label. [TITAN 5000 Classic · 13 entries]
  • A1

    “Long regarded as a gold standard for home backup — designed for high-draw appliances and full-scale battery expansion, running home essentials like a fridge, lighting, and a space heater through outages.”

    backuppowerhub.com / us.ecoflow.com — EcoFlow DELTA Pro review · 2025-2026 · [positive]

  • A2

    “Heavy but wheeled — integrated wheels and a telescoping handle help move its considerable weight, though they work best on flat, smooth surfaces; a cart is needed for uneven ground.”

    outdoorgearlab.com / bobvila.com — DELTA Pro-line review · 2025-2026 · [mixed]

  • A3

    “Reliable through extended outage use — served as primary backup across multiple overnight outages over months, powering essentials simultaneously; LFP battery rated for thousands of cycles and 10+ years of daily use.”

    powerstationadvisor.com / robbsutton.com — DELTA Pro-line review · 2025-2026 · [positive]

  • A4

    “Not silent under heavy load — under 2000W-plus draws the fans emit a noticeable high-pitched whine that's distracting in a quiet room, though it runs quietly enough at lighter loads.”

    outdoorgearlab.com — DELTA Pro-line noise testing · 2025-2026 · [negative]

  • B1

    “4,000 W continuous output at 120 V only — no 240 V split-phase.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B2

    “Outlets: three 120 V 20 A sockets and one 120 V 30 A port.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B3

    “Solar MPPT 30–250 V, 16 A, 3,200 W max; PV short-circuit current 20 A max; PV DC AFCI Type 1.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B4

    “EcoFlow bundles the Classic with its 120 V Smart Home Panel 10, where the TITAN 5000 and Plus get the 240 V version.”

    EcoFlow US store page · 2026-07-20 · [mixed]

  • B5

    “5,017.6 Wh pack rated 204.8 V and 24.5 Ah — the same pack on all three TITAN 5000 models.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [positive]

  • B6

    “Expandable to 30,105.6 Wh, exactly six packs, using EcoFlow's EF-TT-E5-G1 extra battery, each matching the base unit's 5,017.6 Wh.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [positive]

  • B7

    “AC input 100–120 V, 15 A max, limited to under three hours when the draw is above 12 A.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B8

    “USB-C 60 W and USB-A fast-charge 18 W, one port each.”

    EcoFlow rating label (regulatory filing) / EcoFlow US store page · 2026-07-20 · [mixed]

  • B9

    “Indoor siting: the label places the unit in a utility space, outside bedrooms and other living areas — the standard rule for a unit holding more than 1 kWh.”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B10

    “Operating temperature: discharge −10 °C to 45 °C (14 °F to 113 °F); charge 0 °C to 45 °C (32 °F to 113 °F).”

    EcoFlow rating label (regulatory filing), model EF-TT-5C-G1 · 2026-07-20 · [mixed]

  • B11

    “The 204.8 V pack is exactly 64 cells at 3.2 V, and the extra-battery port's 172.8–230.4 V window is exactly 64 × 2.7 V to 64 × 3.6 V — the working range of lithium iron phosphate (LFP) cells.”

    Power Station Arena analysis of EcoFlow's rating labels (our arithmetic, not a maker statement) · 2026-07-20 · [positive]

  • B14

    “UL 9540 certified and tested to UL 9540A, with EV-grade LFP cells and 24/7 BMS monitoring; EcoFlow calls these North America's highest safety standards for residential storage.”

    EcoFlow US store launch page, TITAN 5000 Classic (2026-10-13) · 2026-10-13 · [positive]

  • B15

    “Sold with EcoFlow's Smart Home Panel 10: factory pre-wired ('no custom field wiring needed') with app control of 10 household circuits; Smart Home Panel 10 installation is listed as 'coming soon'.”

    EcoFlow US store launch page, TITAN 5000 Classic (2026-10-13) · 2026-10-13 · [positive]

  • B17

    “Storm Mode: alerts and automatically charges the battery before severe weather; backup switchover under 20 ms through the Smart Home Panel 10.”

    EcoFlow US store launch page, TITAN 5000 Classic (2026-10-13) · 2026-10-13 · [positive]

  • B18

    “TITAN Series AC coupling: works with compatible existing rooftop solar (requires the Smart Home Panel 10 and a CT sensor), so an owner keeps the solar system already installed.”

    EcoFlow US store launch page, TITAN 5000 Classic (2026-10-13) · 2026-10-13 · [positive]

Research compiled October 4, 2026.

07

Who Should Buy Which

Buy the DELTA Pro if you…

  • →Your outages end by breakfast: a fridge, the router, lights and a CPAP through one night fit inside 3,600 Wh with room left, and the $700 stays yours.
  • →Two of you work from home through outages and want both laptops on 100 W USB-C instead of AC bricks.

This is you — check the DELTA Pro price

Buy the TITAN 5000 Classic if you…

  • →Your outages have run past a day, and you'd rather wake up to 2,620 Wh in hand than 1,415.
  • →You're putting a real array on the roof and want a battery that takes 3,200 W of it.
  • →Everything you need backed up is on 120 V circuits, and you want the TITAN packB5 without paying for a 240 V inverter you'd never use.
  • →A storm-prone 120 V home that wants the battery topped up automatically before severe weatherB17 and a pre-wired panel instead of custom field wiringB15.

This is you — check the TITAN 5000 Classic price

If neither fits

If a well pump, central air, an electric range or a dryer is on your list, close this tab: neither unit has a 240 V outlet, and what you want is a split-phase unit such as the TITAN 5000.

08

The Bottom Line

Take the Classic. With 240 V off the table for both, this pair comes down to how much 120 V battery you get and how quickly the sun puts it back, and the Classic leads on both counts.

The DELTA Pro still wins one buyer: the one whose outages end by morning and who'd rather keep $700 than own a second evening of runtime. Everyone else should get the bigger battery and stop counting watts.

09

Frequently Asked Questions

Answers drawn from the spec record and cited owner research.

Can the TITAN 5000 Classic run a well pump or central air?

Not on a 240 V circuit. EcoFlow's rating label lists it at 4,000 W on 120 V only, and loads like a well pump, range, dryer or central air need split-phase 240 V. The DELTA Pro has no 240 V outlet either, so on this pair the question has no winner.

Is the TITAN 5000 Classic worth the extra money over the DELTA Pro?

For a 120 V home backup that has to last more than a night, yes. It costs $700 more and adds 1,417.6 Wh of capacity, 400 W of output and twice the solar input. If 3,600 Wh already covers your longest outage, the DELTA Pro does the job for less.

How long will each one last in a power outage?

On the site's 8-hour blackout load of 1,645 Wh, the DELTA Pro uses 54% of its usable capacity and the Classic 39%. That leaves the DELTA Pro with 86% of a second night in hand and the Classic with 1.6 more nights. Both figures apply the same flat 85% usable allowance, so they compare like with like.

Which recharges faster from solar, the DELTA Pro or the TITAN 5000 Classic?

The Classic. It accepts up to 3,200 W across a 30–250 V window, double the DELTA Pro's 1,600 W, so at full rated input it refills its 5,017.6 Wh pack in about an hour and a half while the DELTA Pro needs a little over two hours for 3,600 Wh. Real arrays rarely hold full rating all day, but the gap between them holds.

Do the DELTA Pro and TITAN 5000 Classic take extra batteries?

Yes, both do. The Classic takes EcoFlow's EF-TT-E5-G1 extra battery up to six packs, 30,105.6 Wh in all. The DELTA Pro also accepts EcoFlow expansion batteries, so either can grow; the Classic simply starts 1,417.6 Wh higher.

What does the TITAN 5000 Classic add beyond the spec sheet?

EcoFlow lists the TITAN 5000 Classic as UL 9540 certified and tested to UL 9540A. The TITAN 5000 Classic ships with a factory pre-wired Smart Home Panel 10 that controls 10 circuits from the app. Storm Mode charges the battery ahead of severe weather. The TITAN 5000 Classic can AC couple with compatible existing rooftop solar, which needs the Smart Home Panel 10 and a CT sensor.

Check TITAN 5000 Classic price →

Where to buy

DELTA Pro

EcoFlow DELTA Pro

$1,899.00

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$1,899.00 · direct from EcoFlow

Last checked 28 days ago. Prices move — check before you buy.

TITAN 5000 Classic

EcoFlow TITAN 5000 ClassicPick

$2,599.00 (estimated)

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$2,599.00 (estimated) · check the store for today’s price

Prices may vary by retailer and are subject to change.